Levels of protein have fallen in most McDonald’s burgers in the last 30 years

Sugar was up to three times higher in its burgers — including its Big Mac and Filet-O-Fish.

Meanwhile, levels of protein have fallen in most burgers and by a fifth in its chicken nuggets.

Professor Graham McGregor, of Action On Sugar, said: “These figures truly are shocking.
“At a time when the food industry should be making strides to reduce the amount of foods high in sugar, salt, saturated fat and calories, McDonald’s is clearly lagging behind.”